Compare 398881 vs 398887
| Property | 398881 | 398887 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 71 × 569831 | 3988871 |
| Prime factorization | 7 × 56983 | 398887 |
| Divisors count | 4 | 2 |
| Divisors | 1, 7, 56983, 398881 | 1, 398887 |
| Number of properties | 1 | 4 |
| Additive primes | 13341st | |
| Happy primes | 4978th | |
| Isolated primes | 26182nd | |
| Primes | 33771st | |
| Semiprimes | 87315th | |
| Roman numberals | ||
| Base 2 | 11000010110001000012 | 11000010110001001112 |
| Base 3 | 2020210111013 | 2020210111213 |
| Base 4 | 12011202014 | 12011202134 |
| Base 5 | 1002310115 | 1002310225 |
| Base 6 | 123144016 | 123144116 |
| Base 7 | 32506307 | 32506367 |
| Base 8 | 14130418 | 14130478 |
| Base 9 | 6671419 | 6671479 |
| Base 10 | 39888110 | 39888710 |
| Base 11 | 25275a11 | 25276511 |
| Base 12 | 172a0112 | 172a0712 |
| Base 13 | 10c73213 | 10c73813 |
| Base 14 | a551714 | a551d14 |
| Base 15 | 7d2c115 | 7d2c715 |
| Base 16 | 6162116 | 6162716 |